fix: reference to beamline in bec worker

src/aare/devices/bec_worker.py

@@ -414,7 +414,7 @@ class BECClientWorker:
             logger.warning(
                 f"Energy change may have failed, current energy: {self.check_current_energy()} eV"
             )
-        if beamline is MXBeamline.X10SA:
+        if self.beamline is MXBeamline.X10SA:
             additonal_text = [
                 f"New dcm_bragg position: {self.dev.dcm_bragg.position:4g} mrad",
                 f"New dcm_pitch position: {self.dev.dcm_pitch.position:4g} ",